diff --git a/Project.toml b/Project.toml
index d60fa60..426b229 100644
--- a/Project.toml
+++ b/Project.toml
@@ -133,7 +133,7 @@ FFTW = "1"
 FillArrays = "0.13, 1"
 FiniteDiff = "2.14"
 Flux = "0.13"
-ForwardDiff = "0.10.23 - 0.10.32"
+ForwardDiff = "0.10.23 - 0.10.32, 1"
 GLM = "1"
 GlobalSensitivity = "= 2.1.3"
 HypothesisTests = "0.10"